Russian President Vladimir Putin said on Saturday that an African initiative could be a basis for peace in Ukraine but that Ukrainian attacks made it hard to realise.
He was speaking at a press conference after meeting African leaders in St Petersburg on Friday and hearing their calls for Moscow to move ahead with their plan.
"There are provisions of this peace initiative that are being implemented," he said. "But there are things that are difficult or impossible to implement."
Reuters reported in June that African mediation in the conflict could begin with confidence-building measures followed by a cessation of hostilities agreement accompanied by negotiations between Russia and the West.
Putin said that one of the points in the initiative was a ceasefire. "But the Ukrainian army is on the offensive, they are attacking, they are implementing a large-scale strategic offensive operation... We cannot cease fire when we are under attack."
On the question of starting peace talks, he said, "We did not reject them... In order for this process to begin, there needs to be agreement on both sides."
Ukrainian President Volodymyr Zelenskiy has rejected the idea of a ceasefire now that would leave Russia in control of nearly a fifth of his country and give its forces time to regroup after 17 grinding months of war.
A powerful magnitude 7.3 earthquake struck near the coast of Mexico's southernmost state of Chiapas on Friday, triggering a tsunami warning and shaking buildings in neighboring Guatemala and El Salvador.
The US Central Command (CENTCOM) has announced that it completed its latest major wave of strikes against Iran, while Kuwaiti and Qatari defence forces reported intercepting missile attacks early on Friday.
Andy Burnham, nicknamed the 'King of the North', was elected leader of Britain's governing Labour Party on Friday, the final step before becoming its seventh prime minister in a decade on a pledge to thwart the rise of the populist Reform UK.
One of Kuwait's power generation and water desalination stations was hit in an Iranian attack, causing damage to facilities, a fire and the disruption of a large number of electricity generation units, Kuwaiti authorities said on Friday.
Qatar's Ministry of Interior has announced that a child has sustained an injury as a result of falling debris from interception operations against Iranian attacks early on Friday.